CGI Environment Variables

wsexton · Jul 8, 2005

I'm trying to display environment variables in my browser (IE):

Here's the html:

<head>
<title>variable test</title>
</head>
<body bgcolor=white>
<center>
<a href=cgi-bin/env.pl>Environment Variables Example</a>
</center>
</body>

Here's the perl:

#!/usr/bin/perl

print "Content-type: text/html\n\n";

print "<HEAD><TITLE>Environment VARIABLES</TITLE></HEAD><br>";
print "<BODY><H1>Some Environment variables</H1><br>";
print "<br>";
print "<HR><PRE>\n";
print "Your current IP address is: $ENV{'REMOTE_ADDR'}<BR>\n";
print "Your Browser is: $ENV{'HTTP_USER_AGENT'}<BR>\n";
print "The page you were just on is: $ENV{'HTTP_REFERER'}<BR>\n";
print "The server sending you this page is: $ENV{'SERVER_NAME'}<BR>\n";
print "</PRE></BODY>\n";

Here's what is displayed in my browser:

#!/usr/bin/perl print "Content-type: text/html\n\n"; print "
"; print "
Some Environment variables

"; print "
"; print "
--------------------------------------------------------------------------------

\n";
print "Your current IP address is: $ENV{'REMOTE_ADDR'}\n";
print "Your Browser is: $ENV{'HTTP_USER_AGENT'}\n";
print "The page you were just on is: $ENV{'HTTP_REFERER'}\n";
print "The server sending you this page is: $ENV{'SERVER_NAME'}\n";
print "
\n";

I'm not sure why it's doing this. Can anyone help? Thanks.

spyderco · Jul 8, 2005

Code:

#!/usr/bin/perl

use warnings;
use strict;
use CGI qw/:standard/;
print header, start_html();

foreach(keys %ENV)
{
   print "$_<br>";
}
print end_html;

wsexton · Jul 8, 2005

When I run that I get a file download message box. I select open, a command box flashes, then it doesn't do anything. I'm running this on my PC using XP. I have IIS installed and I believe I've correctly set up CGI. I also have perl installed and I've set up IIS to use perl to execute both .cgi and .pl files. Any ideas? Is it an IIS problem?

Rieekan · Jul 11, 2005

Perl isn't properly configured for IIS. Take a look at faq219-3559 to get a pretty concise walkthrough of how to set up CGI and Perl for IIS.

- Rieekan

Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

CGI Environment Variables

wsexton

Technical User

spyderco

Programmer

wsexton

Technical User

Rieekan

Programmer

Similar threads

Part and Inventory Search

Sponsor